Bipartite entanglement in systems of identical particles: The partial transposition criterion

被引:54
|
作者
Benatti, F. [1 ,2 ]
Floreanini, R. [2 ]
Marzolino, U. [3 ]
机构
[1] Univ Trieste, Dipartimento Fis, I-34151 Trieste, Italy
[2] Ist Nazl Fis Nucl, Sez Trieste, I-34151 Trieste, Italy
[3] Univ Salerno, I-84084 Fisciano, Italy
关键词
Entanglement; Identical particles; Negativity; QUANTUM DYNAMICS; GASES; ATOMS; NOISE;
D O I
10.1016/j.aop.2012.02.002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study bipartite entanglement in systems of N identical bosons distributed in M different modes. For such systems, a definition of separability not related to any a priori Hilbert space tensor product structure is needed and can be given in terms of commuting subalgebras of observables. Using this generalized notion of separability, we classify the states for which partial transposition turns out to be a necessary and sufficient condition for entanglement detection. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码:1304 / 1319
页数:16
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